Chain grate.



F. KRUPBLIN. 0mm GRATIS. APPLICATION FILED MAR. 16, 1912.

1,046,087 Patented Dec. 3, 1912.

4 SHBETSSHBET 1.

TILL

I s. vi

F. KRBPELIN.

CHAIN GRA'IB.

APPLICATION FILED MAR. 16, 1912.

Patented Dec 3, 1912.

1,0&6,087.,

4 SHEET S-SHBET 2.

TILT

F. KRUPELIN. CHAIN GRATE. ABPLIGATION FILED MAR. 16, 1912.

1,046,087.. Patented Dec. 1912.

4 SHEETS-SHEET 3.

F. miirrmm. CHAIN GRATIS. APP ATION? FILED MAR.16, 1912.

Patented Dec. 3, 1912.

4 SHEETS-SEEET 4.

TA E FATE FRANZ KRfiPELIN, OF D'U'REN, GERMANY.

' CHAIN GHATE.

1,046,087 Specification of Letters Patent Patented Dec. 3, 1912. Application filed March 16, 1912. Serial No. 684,172.

To all whom it may concern. Fig. 16 a plan of the grate fter the re- Be it known that I, FRANZ Knijrnmu, a moval of the chains, Fig. 17 a side elevation citizen of theEmpire of Germany, and reof part of the chain on the lower run-- Siding at Diiren, Rhineland, Germany, have way as seen in the direction of the arrow in g 5 invented certain new and useful lrnprove- Fig. 15, and Figs. 18 and 19 side elevations ments in Chain rates, of which the followof two adjacent fire-bars. mg 1s spectficatlon- Referring firstly to Figs. 1 and 2, the nulyIy nvention relates to chain-grates commerals 1, 2 designate the shafts carried by prising fire-bars each resting on a pair of the two side plates 3, 4 of the frame, and 65 beal'el's n g g g 531d e j driven in well-known manner by means of The novel feature of my mvcn pn a worm 8 engaging the worm-wheel 7 se- SldeS 111 the 3.01? that the upper POI'UODS 0f curely munted on the haft 1, The chainthe firc bars do not rest upon the bearer wheels 5, ,6, respectively fast on the shafts t h firefbtus 3T9 pq about the 1, 2, carry the chain constituted by the bear- 70. guide-bars of the bearers with a clearance erg 10, forming, links, and the connecting between said fire-bars and these guide-bars links 11. The bearers are each provided" while the lower portions of the fire-bars are ith a l t. 9, hi h serves t a th fi directly supported by the bearers. bars 12 having forked ends. The lower 7 The advantage gamed by t S imp prongs 13 of-these forked ends enter into 20 construction is that the portions of the fire th l t 9 i th b th are u der th bars engaging the bearers are efiective y guide-bars 10 formed by said slots, and rest cooled by the air streaming through In on the bottom part of the bearers. On the the furnace and are consequently protecte other hand, the upper prongs are a certain from being'burnt.

2 Several embodiments of my invention r bars, so that the air for combustion in passrepresented b Way of example 111 e ing toward the furnace may come in contact companying rawings, where1n; with both the guide-bars as well as the Figures 1 and 2, showing the first form of upper prongs of the fire-bars. In this man' chaimgrate, are longitudinal SQCtlOn on the ner these upper prongs are kept c001 and 80 line lV-Ji' in Fig. 2 and vertical 89611011 on protected from being burnt, When the firethe line A-B in Fig.1,reSpeC y; g bars are made reversible and when the 3 and 4 Show t Second form, g- 3 g upper surfaces have become burnt, the bars a vertical section on the line C-D in Fig. can be reversed as the upper prongs will be 7 distance away from the top of these guide- .89

4 and Fig. 4 a longitudinal section taken on sufficiently preserved. to take the place of I v 35 the line CD in Fig. 3 as seen 1n h ir the lower and be inserted into the slots 9 in tion of the arrow, respectively; Figs. 5 t0 7 the bearers. The side plates 3, 4: of the show the third form, Fig. 5 being a long lframe also carry the shaft 16 fast on which tudinal section on the line E F" in Fig. 6; is mounted the grooved roller 17 as well as Fig. 6 a cross-section taken on the line E-F the pinion 18. The latter meshes with a 40 in Fig. 5, and Fig. 7 a detail view'showing spur-gear 19 journaled on the side 1 of the the connection of the transverse bearers with frame and meshing with the gear-wheel 21 the links of the chain; Figs. 8 and 9 show the fast on the shaft 1. Motion is thus transfourth form, Fig. 8 being a longitudinal secmitted from the shaft 1, by means of the tion on the line Gr-H in Fig. 9 and Fig. a wheels 21, 19 and 18 to the shaft 16 and the v horizontal section on the line -K in Fig. roller 17 and the ribs on this roller act '8; Figs. 10 and 11 show the fifth form, Fig. upon the fire-bars in succession and impart 10 being a longitudinal section on the'line to each in turn a vertical movement, where- L-M in Fig. 11, and Fig. 11 a horizontal by a kind of shaking motion 15 given tosection on the line NO in Fig. 10; Figs. them.

12 and 13 show the sixth form, Fig. 12 be- The second form of chain-grate shown in ing a longitudinal section on the line 13-61 Figs. 3 and 4: chiefly differs from that just in Fig. 13, and Fig. 13 a horizontal section described in that the bearers 10 are not pro- R--S in Figil2; and Figs. 14: to 19 show the vided" with slots through them, but with seventh form, Fig. 14 being a longitudinal seatings or ledges 22,'by which the lower 11 55 section on the line T-U in Fig. 15 Fig. 15. prongs 13 of the fire-bars 12 are supported. a cross-section on the line V-W in Fig. 16, The forked ends of the fire-bars clasp the members detachably mounted on their bearers by means of screws 37. The latter arrangement'has the advantage .that the firebars 12 maybe removed from one side of the grate by taking out the screws 37 and 3, 1' of the frame,

'taking'off theg'uide-bar, whereupon the firebars can be readily drawn out.

Referring to Figs. 5 to '7, the shafts 1, 2. areagain journaled in the two siderplates and are rotated by means of the worm 8 meshing with the worm wheel which are the ribbed there runs in frame, and gearing '7 fast on the, shaft 1. Over the chain-wheels .5," 6, fast on the shafts 1, 2, respectively, this instance also the chain comprising bearer members lOand intermediate :links 11. Onto the bearer members 10 are bolted the 'U-brackets 23, and on the latter are bolted the bearers 24, 24. These bearers have on their inner sides the seatings-or ledges 22 for supporting-thev firehars 12, while the guide-bars 26 clasped with play by the fire-bars project outwardly from ,the bearers. The side plates 3,4 of 'the frame also carry the shaft 16, fast on roller 17 and the pinion 18. The latter meshes with the spurgear 19 journaled in the side plate 4: of the with the gear-wheel 21 fast on the shaft 1. The-roller l7 beingthus rotated by the shaft 1, the fire-bars 12 are acted. upon in succession by said roller and are given .a certain vertical movement whereby they are shaken in a manner simi- -lar to that in the'form of grateaccording and 13 the bearers 22 are connected with the plates and have a space "land .the bearers,.wl11ch admits of air passing through between to Figs. land 2.

. 1/ The form of grate according to Figs. 8. and}? differs from that according'to Figs.

. 5 to 7 in that the seatings or ledges 22 for supporting the fire-bars are formed as between themselves them, by which means the supported portions of the fire-bars are kept cool. The bearers 24 and the seatingplates 22 set at a certain distance from. one another are both supported below by the bearers or links 10.

In the form of'a grate according to Figs. .10 and 11 the bearers 22 are connected to the brackets 23 and the latter are connected with two opposite links 10 of the endless chains. Moreover, the guide bars 24, engaging the fire-bars 12, do not directly rest upon the links 10, 10, but are rigidly connected with the bearers 22,22 by means of stay bolts 27 or the like. i 4

In the form of grateaccordingto Figs. 12

brackets 23 and the latter with the opposite I links way 10 of the endless chains in a similar as in the form of grate according to Figs 9 and 10. The guidebars 24however,

'of the worm-gear comes appreciably less,

2 wheels, a plurality engaging the fire bars 12 are; not arranged at the inner side but at the outer side of the bearers 22. Inthis case also staybolts 27 are used to rigidly connect the guide bars iand the bearers. f p I In'the form of grate according to Figs-.14: to 19, the shafts 1, 2 are again Journaled in the sides 3, 4 of the frame and together with the sprocket-wheels 5, 6 are rotated by means 8. The fire bars 12 here rest upon'the seating-plates rigidly attached to the bearers '24 by stay bolts: The seating-plates 22 rest on the link pins v28 of the chain. Each'of these link-pins carries two rollers "29, 29" which run on rails 30, 30. are mounted the rails 31,31, which support the rollers 29, 29' when the chain is initsv The rails 30, 31 are respec lower runway. tively mounted on the side plates 3, 4 of the frame, while the rails 30', 31gare mounted on the inner plates 32, the latter being suitably supported by the side plates 1, 2 of the frame by means of transverse .carriers33, 34:, 35. Owing to the chain running with the rollers 29, 29 on the rails ,30, 30 or 31, 31, the chains and cliain-\'vheels arenot subjected to such great stresses, as otherwise the power required to drive the chain beas principally frictional reslstances have to be overcome. In

Underneath these rails two adjacent fire-bars 12 the prongs 36 which are under the guide-barsare made'ofdilferent depths The consequence is that these prongs/when in the lower runway rest upon the gu1de-bars-15 formed on the bearers24 and the fire-bars are at different levels (Fig. 17), whereby the removal of clinker is materially. facilitated.

1. -In a chairi' grate thecombination of two bearers/each having a supporting member and "a guiding memberand fire barshav ing ends resting upon the. supporting members extending with their upper po1"-- f tions over the guiding members'without being in co 'tact therewith. e 2. In achain grate the combination of two bearers, eacl-thaving a supporting member and-a guiding member and fire'bars, being supported-on parts of the supporting mem-. ber situated below its upper surface, the'portions of said fire bars which extend over the guiplling members are not ih contact therewit v 3. In a chainrgrate, the combination of a frame, two axles, each carrying chain-wheels (5,6) journale-d therein and parallel-end around said chainof pairs of bearers car.-

less chains movable ried by the chains,

nected with the bearers, and a plurality of fire-bars removabl es'upportedhy their lower guide bars rigidly con-- rality of bars withont being in jonrnaled therein,

over the guide-bars withoutjbeing in cont-act therewith.

, 4. In a chain-grate, the combination of a frame, two axles each carrying chain-wheels and parallel endless chains movable around said wheels, a pluairs of bearers carried by the chains, guide-bars rigidly connected with the bearers and located at a distance from the same, and a plurality of fire-bars removably supported with their lower head-portions by each pair of the bearers and extend ing with their upper portions over the guidecontact therewith.

the combination of a 5. In a chain-grate,

frame, two axles, each carrying chainwheels, journaled therein, and parallel endless chains movable around said chainwlleels, ,a plurality of bearers carried by the chains, sald bearers being parallel with the links of the chains and fire bars with their ends resting on said bearers transverse to said chains.v

In testimony whereof, I affix my signature in the presence-of two witnesses.

Witnesses i HENRY GRADPICY, ELISE KALB scu.

FRANZ KRUB/ELIN. 

